A contradiction in what sense? I believe many RL teams combine a high pressing system with a possession-oriented attacking style. This is what I was aiming for with my mentality/TIs (many of which is based on the vertical tika-take preset)
But yeah I can see where you guys are coming from regarding my tactic being too safe. My justification for using WMs instead of AMs is that they track back more readily and provide more customisable roles. I didn’t think this would have much impact in an attacking sense but I guess I was wrong.
I think part of the problem is when we have the ball in the final third against a packed defence. Our attack ends up quite narrow and there isn’t much space. There isn’t that much movement from our attacking players either. I’ll have a closer look as see what I can find.

The inspiration behind my system is Sarri's Napoli, however I'm really struggling to score goals or at least reproduce attractive football. I seem to be winning most games against mid-lower table teams in the league, but the majority of my goals in these games have come from long shots/set pieces.
Can anyone give me advice on how I can approve my set up from an attacking sense? Thanks.

I think the Trequartista role is defunct. On paper, you're not asking the Treq to do anything that much different from a F9 (dropping into space, providing a passing option, being creative focal point in the team). Also currently, I can't think of many real life examples of a player behaving like a treq from a CF position.
Likewise, I also think we could do with more customisation for the wide forward roles, e.g. being able to tell wingers to cross less or telling inside forwards to make less risky passes. Either that or a new generic wide forward role (similar to wide midfielder but in AMR/AML position)

Played 4 games and I can see that the attacking movement from strikers has definitely improved. However, the False 9 is still playing a lot like an advanced forward when the ball reaches the final third. He occasionally drops deep to offer himself as an option, but this movement happens very rarely throughout the match.

I'm looking forward to seeing how this develops, as I absolutely loved that Bayern team.
A couple of comments from me:
- I don't think the Barcelona game does justice to how they really played. For me they're a possession team, albeit a more direct one. They averaged 58% possession in the Bundesliga, and apparently only Barcelona had higher possession and passing stats that season (See Jonathan Wilson: https://www.theguardian.com/football/blog/2013/may/28/tactical-trends-2012-13)
- It's worth paying attention to how Heynckes used the N.10 role. Kroos enabled Bayern to dictate the game due to his passing prowess and movement off the ball (dropping deep and moving laterally), while Muller was a defensive workhorse who provided the penetrating runs from deep
- The Juventus game in the CL Quarter final was a good example of how Heynckes used the N.10 to mark out deep lying playmakers such as Pirlo
- When considering roles for the double pivot, I'd be careful labelling Javi Martinez as a pure holding midfielder. If you watch some clips closely, he did tend to venture into the opposition box a fair bit.
This is also a useful article showing aspects of their play:
http://bleacherreport.com/articles/1656404-how-bayern-munichs-success-might-change-tactics-across-europe-next-season